基于豌豆蛋白分离物、鼠尾草籽胶和孜然精油的可生物降解活性复合膜:制造和表征

IF 4.5 3区 工程技术 Q1 CHEMISTRY, APPLIED
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引用次数: 0

摘要

本研究探讨了豌豆蛋白分离物(PPI)-鼠尾草籽胶(SG)(3:1、1:1 和 1:3)与孜然精油(CEO、0、1 和 2 %)复合薄膜的物理化学、机械、热、阻隔和光学特性。结果表明,厚度、接触角 (CA)、黄度指数 (a*)、总色差 (∆E) 和不透明度 (OP) 随 PPI 含量和 CEO 浓度的增加而显著增加(p < 0.05),而且由于蛋白质团聚和油滴的存在,薄膜表面的异质性和不一致性结构增加。然而,含水量(MC)、水溶性(WS)和膨胀率(SR)则有所下降。结果还表明,随着 CEO 浓度的增加,抗氧化性能也明显提高(P < 0.05)。据估计,PPI 3-SG 1-0 % 的拉伸强度(TS)和弹性模量(EM)最高,断裂伸长率(EAB)最小。含有 CEO 的薄膜的潜在抗菌特性得到了证实,在含有 2 % CEO 的薄膜中测得了对大肠杆菌、金黄色葡萄球菌、白僵菌和黑曲霉的最大抑菌区。由于 SG 的亲水性,薄膜对水和氧气(WVP、OXP)的阻隔性能随着 SG 比率的增加而降低。傅立叶变换红外光谱分析确定了薄膜成分中的官能团以及薄膜成分之间的相互作用。DSC 热图显示了薄膜的热稳定性,PPI 3-SG 1-2 % 薄膜的分解温度最高。XRD 显示生物聚合物活性薄膜具有半晶体结构。随着 SG 比例和 CEO 浓度的增加,薄膜的结晶度也有所提高。结果还表明,制备的薄膜具有 90% 以上的生物可降解性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Biodegradable active composite film based on pea protein isolate, sage seed gum, and cumin essential oil: Fabrication and characterization

Biodegradable active composite film based on pea protein isolate, sage seed gum, and cumin essential oil: Fabrication and characterization

The present study perused the physicochemical, mechanical, thermal, barrier, and optical properties of pea protein isolate (PPI)-Sage seed gum (SG) (3:1, 1:1, and 1:3) composite films incorporated with cuminum essential oil (CEO, 0, 1, and 2 %). Results indicated that the thickness, contact angle (CA), yellowness index (a*), total color differences (∆E), and opacity (OP) significantly enhanced with increasing PPI portion and CEO concentration (p < 0.05), as well as heterogeneous and inconsistent structure were increased in film surface due to protein agglomeration and oil droplets. However, the moisture content (MC), water solubility (WS), and swelling ratio (SR) decreased. Results also indicated that the antioxidant property significantly increased (P < 0.05) following the increase in CEO concentration. The highest tensile strength (TS) and elastic modulus (EM) and the least elongation at break (EAB) in PPI 3-SG 1–0 % were estimated. The potential antimicrobial property of CEO containing film was confirmed, and the maximum inhibition zone for E.coli, S.aureus, C.albicans, and A.niger were measured in film containing 2 % CEO. The barrier properties of the film against water and oxygen (WVP, OXP) diminished with increases the SG ratios, due to the hydrophilic nature of SG. The FTIR analysis identified the functional groups in film components and the interaction between film components. The DSC thermogram indicated the thermal stability of films and the highest decomposition temperature in PPI 3-SG 1–2 % film. XRD revealed a semi-crystalline structure of biopolymer active films. With the increase of SG portion and CEO concentration, the crystallinity of the films was enhanced. Results also indicated that prepared films were more than 90 % biodegradable.

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来源期刊
Reactive & Functional Polymers
Reactive & Functional Polymers 工程技术-高分子科学
CiteScore
8.90
自引率
5.90%
发文量
259
审稿时长
27 days
期刊介绍: Reactive & Functional Polymers provides a forum to disseminate original ideas, concepts and developments in the science and technology of polymers with functional groups, which impart specific chemical reactivity or physical, chemical, structural, biological, and pharmacological functionality. The scope covers organic polymers, acting for instance as reagents, catalysts, templates, ion-exchangers, selective sorbents, chelating or antimicrobial agents, drug carriers, sensors, membranes, and hydrogels. This also includes reactive cross-linkable prepolymers and high-performance thermosetting polymers, natural or degradable polymers, conducting polymers, and porous polymers. Original research articles must contain thorough molecular and material characterization data on synthesis of the above polymers in combination with their applications. Applications include but are not limited to catalysis, water or effluent treatment, separations and recovery, electronics and information storage, energy conversion, encapsulation, or adhesion.
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